102 lines
3.7 KiB
PHP
102 lines
3.7 KiB
PHP
<?php
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/**
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* Server-side rendering of the `core/query-pagination-numbers` block.
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*
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* @package WordPress
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*/
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/**
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* Renders the `core/query-pagination-numbers` block on the server.
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*
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* @param array $attributes Block attributes.
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* @param string $content Block default content.
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* @param WP_Block $block Block instance.
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*
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* @return string Returns the pagination numbers for the Query.
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*/
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function render_block_core_query_pagination_numbers( $attributes, $content, $block ) {
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$page_key = isset( $block->context['queryId'] ) ? 'query-' . $block->context['queryId'] . '-page' : 'query-page';
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$page = empty( $_GET[ $page_key ] ) ? 1 : (int) $_GET[ $page_key ];
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$max_page = isset( $block->context['query']['pages'] ) ? (int) $block->context['query']['pages'] : 0;
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$wrapper_attributes = get_block_wrapper_attributes();
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$content = '';
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global $wp_query;
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if ( isset( $block->context['query']['inherit'] ) && $block->context['query']['inherit'] ) {
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// Take into account if we have set a bigger `max page`
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// than what the query has.
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$total = ! $max_page || $max_page > $wp_query->max_num_pages ? $wp_query->max_num_pages : $max_page;
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$paginate_args = array(
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'prev_next' => false,
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'total' => $total,
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);
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$content = paginate_links( $paginate_args );
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} else {
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$block_query = new WP_Query( build_query_vars_from_query_block( $block, $page ) );
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// `paginate_links` works with the global $wp_query, so we have to
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// temporarily switch it with our custom query.
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$prev_wp_query = $wp_query;
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$wp_query = $block_query;
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$total = ! $max_page || $max_page > $wp_query->max_num_pages ? $wp_query->max_num_pages : $max_page;
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$paginate_args = array(
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'base' => '%_%',
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'format' => "?$page_key=%#%",
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'current' => max( 1, $page ),
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'total' => $total,
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'prev_next' => false,
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);
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if ( 1 !== $page ) {
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/**
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* `paginate_links` doesn't use the provided `format` when the page is `1`.
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* This is great for the main query as it removes the extra query params
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* making the URL shorter, but in the case of multiple custom queries is
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* problematic. It results in returning an empty link which ends up with
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* a link to the current page.
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*
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* A way to address this is to add a `fake` query arg with no value that
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* is the same for all custom queries. This way the link is not empty and
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* preserves all the other existent query args.
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*
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* @see https://developer.wordpress.org/reference/functions/paginate_links/
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*
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* The proper fix of this should be in core. Track Ticket:
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* @see https://core.trac.wordpress.org/ticket/53868
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*
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* TODO: After two WP versions (starting from the WP version the core patch landed),
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* we should remove this and call `paginate_links` with the proper new arg.
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*/
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$paginate_args['add_args'] = array( 'cst' => '' );
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}
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// We still need to preserve `paged` query param if exists, as is used
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// for Queries that inherit from global context.
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$paged = empty( $_GET['paged'] ) ? null : (int) $_GET['paged'];
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if ( $paged ) {
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$paginate_args['add_args'] = array( 'paged' => $paged );
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}
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$content = paginate_links( $paginate_args );
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wp_reset_postdata(); // Restore original Post Data.
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$wp_query = $prev_wp_query;
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}
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if ( empty( $content ) ) {
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return '';
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}
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return sprintf(
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'<div %1$s>%2$s</div>',
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$wrapper_attributes,
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$content
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);
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}
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/**
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* Registers the `core/query-pagination-numbers` block on the server.
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*/
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function register_block_core_query_pagination_numbers() {
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register_block_type_from_metadata(
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__DIR__ . '/query-pagination-numbers',
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array(
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'render_callback' => 'render_block_core_query_pagination_numbers',
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)
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);
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}
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add_action( 'init', 'register_block_core_query_pagination_numbers' );
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